Abstract
We propose a flexible manipulation on the Goos-H\anchen shift (GHS) via a cavity optomechanical system driven by an external coherent control field and reveal the behavior of the GHS as a result of light-matter interaction. It is achievable for both positive and negative GHSs in our system by tuning the coherent control field strength. The positive shift can flexibly be tuned to a negative shift by changing the cavity length. Furthermore, the control field can be used as a knob to turn the optical cavity on and off for manipulating the GHSs. A devastating suppression of the GHS can be observed due to weaker interaction between the cavity photons and the mechanical resonator by increasing the cavity decay rate. The results have potential applications in light-light manipulation via cavity optomechanical systems.
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